<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
  <style>
    body {
      margin: 0;
      height: 1000px;
    }
    #box {
      margin: 100px;
      margin-top: 500px;
      width: 200px;
      height: 200px;
      background-color: red;
    }
  </style>
</head>
<body>
  <div id="box">
  </div> 
  <script>
    var box = document.getElementById('box');
    box.onclick = function (e) {
      e = e || window.event;

      // 获取的鼠标在浏览器的可视区域的坐标
      //console.log(e.clientX);
      //console.log(e.clientY);

      // 鼠标在当前页面的位置
      console.log(e.pageX);
      console.log(e.pageY);

    }

  </script>
</body>
</html>
